... a high-school history teacher from williamstown, massachusetts... and a fourth-grade math teacher from richardson, texas... and now here is the host of "jeopardy!" -- alex trebek! thank you, johnny. thank you, ladies and gentlemen, and welcome to the first of our semi-final matches. the two players who do not win the game today will go home, each receiving $10,000 in cash. that's good, but not as good as the winner, because that person gets to come back in three days and play for $100,000. so, this is a big, important game. john, timothy, and katie, good luck. here comes the jeopardy! round. and now here are the categories. you'll see those two letters in each correct response. [ laughter ] alex: john, start. "oh" for $200. john. what is pharaoh? yes. "oh" for $400. answer there -- daily double. [ laughs ] [ applause ] oh, boy. alex: you know the drill. you can risk up to $1,000. i'll go for $1,000. okay. what is bohemia? yes. [ applause ] "oh" for $600.